(1) High-quality wear-resistant cast iron: low cost, good shock absorption and wear resistance, easy to cast and chip processing
(2) Granite: longer-term dimensional stability than cast iron Good, low thermal expansion coefficient, strong vibration attenuation ability, high hardness, wear resistance and will not rust.
(3) Artificial granite: Made of granite particles bonded with resin, it can be cast and molded, has low hygroscopicity, and has enhanced vibration attenuation ability.